Feature: 1. Quick thunder protection, can guarantee the safety of home appliances. 2. Made of high quality electronic components, stable and reliable performance. 3. Flame-retardant fireproof housing, safe and secure to use. 4. Copper components for better conductivity performance. 5. Detachable assembly, simple wiring and easy installation. Specification: Item Type: Surge Protector Optional Model: LT1-20, LT1-40 Optional Setting Current: 20KA, 40KA Model Rated current Setting current Rated voltage Up LT1-20 10KA 20KA 420V AC Up≦1.5KV(20KA) LT1-40 20KA 40KA 420V AC Up≦1.8KV(40KA) Package List: 2 x Surge Protector